DR. JUSTIN MADDEN PHARMD
NPI 1811907793
Pharmacist in Fort Leonard Wood, MO

NPI Status: Active since August 09, 2006

Contact Information

GENERAL LEONARD WOOD COMMUNITY HOSPITAL
4234 ILLINOIS AVE
FORT LEONARD WOOD, MO
ZIP 65473
Phone: (573) 596-0515

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  • Individual
  • Male
  • Pharmacist

About JUSTIN MADDEN

This page provides the complete NPI Profile along with additional information for Justin Madden, a provider established in Fort Leonard Wood, Missouri with a medical specialization in Pharmacist. The healthcare provider is registered in the NPI registry with number 1811907793 assigned on August 2006. The practitioner's primary taxonomy code is 183500000X with license number 2001029148 (MO). The provider is registered as an individual and his NPI record was last updated April 2026.

NPI
1811907793
Provider Name
DR. JUSTIN MADDEN PHARMD
Gender
Male
Entity Type
Individual
Location Address
GENERAL LEONARD WOOD COMMUNITY HOSPITAL 4234 ILLINOIS AVE FORT LEONARD WOOD, MO 65473
Location Phone
(573) 596-0515
Mailing Address
GENERAL LEONARD WOOD COMMUNITY HOSPITAL 4234 ILLINOIS AVE FORT LEONARD WOOD, MO 65473
Mailing Phone
(573) 596-0515
Is Sole Proprietor?
No
Enumeration Date
08-09-2006
Last Update Date
04-20-2026
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A pharmacist like Justin Madden fills prescription medications, verifying instructions from physicians and offers expertise in the safe use of prescriptions. Pharmacists instruct patients on how to take a prescribed medicine and educate patients about potential side effects. Pharmacists might also conduct health and wellness screenings, provide immunizations, oversee the medications given to patients, and provide advice on healthy lifestyles.

Location Map

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Pharmacist

Taxonomy Code
183500000X
Type
Pharmacy Service Providers
License No.
2001029148
License State
MO
Taxonomy Description
An individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation, monitoring or modification of medication and or medical orders; the compounding or dispensing of medication and or medical orders; participation in drug and device procurement, storage, and selection; drug administration; drug regimen reviews; drug or drug-related research; provision of patient education and the provision of those acts or services necessary to provide medication therapy management services in all areas of patient care.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
11835P0018XPharmacy Service Providers

Pharmacist
Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist

2001029148 (MO)

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1811907793, we treat the final digit (3) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
8
Unchanged
Pos 3
1
Doubled → 2
Pos 4
1
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
0
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
3
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 1 → 2 9 → 18 → 9 7 → 14 → 5 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 8 + 2 + 1 + 1 + 8 + 0 + 1 + 4 + 7 + 1 + 8 + 24 = 67

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1811907793.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Physician Assistant
GENERAL LEONARD WOOD COMMUNITY HOSPITAL, 4430 MISSOURI AVE
FORT LEONARD WOOD, AA 65473
Psychiatry & Neurology (Psychiatry)
GENERAL LEONARD WOOD COMMUNITY HOSPITAL, 4234 ILLINOIS AVE
FORT LEONARD WOOD, MO 65473
Family Medicine
GENERAL LEONARD WOOD COMMUNITY HOSPITAL, 4234 ILLINOIS AVE
FORT LEONARD WOOD, MO 65473
Nurse Practitioner (Family)
GENERAL LEONARD WOOD COMMUNITY HOSPITAL, 4234 ILLINOIS AVE
FORT LEONARD WOOD, MO 65473
Nurse Practitioner (Psychiatric/Mental Health)
GENERAL LEONARD WOOD COMMUNITY HOSPITAL, 4234 ILLINOIS AVE
FORT LEONARD WOOD, MO 65473
Physician Assistant
GENERAL LEONARD WOOD COMMUNITY HOSPITAL, 4234 ILLINOIS AVE
FORT LEONARD WOOD, MO 65473

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1811907793, enumerated as an "individual" on August 09, 2006.

The provider is located at GENERAL LEONARD WOOD COMMUNITY HOSPITAL 4234 ILLINOIS AVE FORT LEONARD WOOD, MO 65473 and the phone number is (573) 596-0515.

Pharmacist with taxonomy code 183500000X.